Locomotive stoker



l2 Sheets-Sheetl 1 Tr mu #my m C f M TTORNEYS Oct. 22, 1940. C. J, SURDYLocoMoTIvE sToKER Filed March 1e, 193s C. J. lSURDY LocoMoTIvE sToKER 2S'heets-Sheet 2 Filed March 16, 1938 INVENTOR ray ATTORNEYS w J 5 Pv /rYPatented Oct. 22, 1940 UNITED STATES PATENT oFFicE LOCOMOTIVE STOKERporation of Delaware Application March 16,

8 Claims.

'This invention relates to locomotive stokers of the type employingseveral flexibly connected conveyors leading from the fuel supply on thetender to the locomotive reboX.

It is an object of this invention to improve such locomotive stokerswhereby assembly or disassembly of the conveyors may be convenientlycarried out.

Specifically, it is an object of this invention to improve that portionof the stoker which is carried on the locomotive whereby assembly ordisassembly of a conveyor may be conveniently carried out from aposition in the locomotive cab.

Other and further objects of the invention reside in feature ofconstruction and in their combination with one another as illustrated inthe drawings, in which Fig. 1 is a vertical medial section through therearward portion of the locomotive showing the invention in similarsection;

Fig. 2 is a sectional View taken on the line- 2 2 of Fig. l;

Fig. 3 is a view similar to Fig. 1 illustrating a modification; and

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 1 or 3.

Referring now to Figs. 1, 2 and 4, L represents a locomotive which has aboiler I supported above the frame Il by means which includes a plateelement I2. The boiler I0 consists of a fireboX I3 closed on its rear bya backwall I4 which is provided with a firing opening I5 above thegrates I 6. Rearward of the backwall I4 is a cab I1 having a deck I8disposed below the level of the firing opening I5.

Leading forwardly from the tender (not shown) is a conduit I9 of thestoker S, said conduit comprising a pair of telescoped conduit sections20, 2| housing a conveyor screw 22 therein. The o forward conduitsection 2| is provided on its forward end with a spherical member 23,the upper portion 24 of which is hinged at 25 to the main part of theconduit section 2|. The spherical member 23 is received in a sphericalseat 26 formed in the lower end of an inclined conduit section 21 whichcomprises one part of a fuel elevating conveyor C. As shown in Fig. 2,the rearward end of the conduit section 21 is U-shaped in transversecross-section in order to permit upward and rearward swinging move--ment of said upper portion 24 upon removal of the clamp 28. For thispurpose, the portion 29 of cab deck I8 immediately above the clamp 28 ishinged as at 30.

1938, Serial No. 196,113

of the conduit section 21 a pintle 3| extends outward and fits into anupwardly opening recess 32 formed in each side wall 33 of a bracket 34.The bracket 34 is secured to the locomotive L by bolts 35 which extendinto the rebox backwall 5 I4. At its forward end the conduit section 21is preferably provided with a spherical member 36 which ts into a seat31 of the discharge conduit section 38, the latter forming a part of thefuel elevating conveyor C. The rearward end of the l0 conduit section 38is also U-shaped in transverse cross section (Fig. 4) and a detachableclamp 39 is used to hold the parts in operative relation. Fuel isconveyed through the conveyor C by means which includes a screw 49disposed with- 15' in the conduit section 21. A link 4| universallyconnects the screws 22 and 4|).k The discharge conduit section 38 issecured to the backwall I4 by means of bolts which pass through a strap42 and v,flanges such as 43 eX- 20 tending laterally from the dischargemouth 44 of the conduit section 38. Above the conduit section 38 is acasing 45 which embraces that portion of the firing opening I5immediately above that portion of such opening withwhich said 25discharge mouth 44 communicates. On the rearward side of the casing 45is a redoor 46 which normally closes an aperture 41 opposite said firingopening I5.

Fuel is conveyed from the tender by the screw 30" which projects thefuel to all parts of the flre- 35r` bed. The distributor D comprises ajet member 48 which issues blasts of pressure fluid over a plate 49 fromwhich the fuel is blown forwardly and laterally in aerial paths.

Whenever it is desirable to lrenew or repair the conveyor screw 4|), theStoker S is rst operated in reverse so that fuel in the elevatingconveyor C is moved rearwardly. Then the portion 29 of the cab-y deck |Sis swung rearwardly and clamps 28 and 39 are removed whereupon it ispossible 45 to 'swing upwardly and rearwardly the upper portion V24 ofspherical member 23. With the upper portion 24 in such position, thelink 4| of the universal joint between screws 22 and 40 is exposed andreadily removed. In order to remove the screw 40 from a position in thecab I1, the conduit section 21 is swung upwardly about the axis of thepintles 3| to the position indicated by the dot and dash lines inFig. 1. It is also possible to replace the screw 40 with the conduit 55'section 21 in this position. The re-assembly of the other parts isobvious.

In Fig. 3, the pintles 3| are each received in an upwardly openingrecess such as formed in the support bracket 5I which is secured to thelocomotive frame ll. This construction will be found to be of particularadvantage in supporting the rearward end of an unusually long conduitsection 21. In all other respects, this form of the invention isidentical to the form shown in Fig. 1.

Those familiar with the art will readily understand that by the presentconstruction, the screw 22 and conduit section 21 can be readily removedor installed from a convenient position in the locomotive cab I1. At thesame time, the supporting means for the conduit section 21 allows thissection to adjust itself in operative position without setting up anystrains in the various parts of the Stoker due to wearing or othermovements of the locomotive.

I claim:

1. In a locomotive comprising a frame, a firebox having a firing openingin the backwall thereof and a cab having a deck extending rearward ofsaid backwall, the combination comprising a discharge conduit sectionsecured to said backwall and being in communication with said reboxlthrough the iiring opening in said backwall, an inclined conduit sectionextending rearwardly from said discharge conduit section, means on thelocomotive providing a pivotal support for the rearward end of saidinclined conduit section whereby said inclined conduit section may bemoved vertically about a transversely extending horizontal axis, theforward end of said inclined conduit section being supported by saiddischarge -conduit section by a flexible joint providing for movementabout a transversely extending horizontal axis, and a third conduit sec-`tion extending rearwardly from said inclined conduit section and beinguniversally connected therewith, the center of articulation of theuniversal joint between said third conduit section and said inclinedconduit section lying approximately on the transversely extendinghorizontal axis of said pivotal support, said inclined conduit sectionbeing movable vertically about the transversely extending horizontalaxis of said pivotal support and about the center of articulation of theuniversal joint between the third conduit section and the inclinedconduit section to a position wherein said inclined conduit sectionopens axially into the cab rearward of said discharge conduit section.

2. In a locomotive comprising a frame, a rebox having a firing openingin the backwall thereof and a cab having a deck extending rearward ofsaid backwall, the combination comprising a discharge conduit sectionsecured to said backwall and being in communicationwith said fireboxthrough the firing opening in said backwall, an inclined conduit sectionextending rearwardly from said discharge conduit section, means carriedby the backwall providing a pivotal support for the rearward end of saidinclined conduit section whereby said inclined conduit section may bemoved vertically about a transversely extending horizontal axis, theforward end of said inclined conduit section being supported by saiddischarge conduit section by a flexible joint providing for `movementabout a transversely extending horizontal axis, and a third conduitsection extending rearwardly from said inclined conduit section andbeing universally connected therewith, the center of articulation of theuniversal joint between said third conduit section and said inclinedconduit section lying approximately on the transversely extendinghorizontal axis of said pivotal support, said inclined conduit sectionbeing movable vertically about the transversely extending horizontalaxis of said pivotal support and about the center of articulation of theuniversal joint between the third conduit section and the inclinedconduit section to a position wherein said inclined conduit sectionopens axially into the cab rearward of said discharge conduit section.

3. In a locomotive comprising a frame, a firebox having a firing openingin the backwall thereof and a cab having a deck extending rearward ofsaid backwall, the combination comprising a discharge conduit sectionsecured to said backwall and being in communication with said reboxthrough the ring opening in said backwall, an inclined conduit sectionextending rearwardly from said discharge conduit section, means carriedby the locomotive frame providing a pivotal support for the rearward endof said inclined conduit section whereby said inclined conduit sectionmay be moved vertically about a transversely extending horizontal axis,the forward end of said inclined conduit section being supported by saiddischarge conduit section by a exible joint providing for movement abouta transversely extending horizontal axis, and a third conduit sectionextending rearwardly from said inclined conduit section and beinguniversally connected therewith, the center of articulation of theuniversal joint between said third conduit section and said inclinedconduit section lying approximately on the transversely extendinghorizontal axis of said pivotal support, said inclined conduit sectionbeing movable vertically about the transversely extending horizontalaxis of said pivotal support and about the center of articulation of theuniversal joint between the third conduit section and the inclinedconduit section to a position wherein said inclined conduit sectionopens axially into the cab rearward of said discharge conduit section.

4. In a locomotive comprising a frame, a rebox having a ring opening inthe backwall thereof anda cab having a deck extending rearward of saidbackwall, the combination comprising a discharge conduit section securedto said backwall and being in communication with said firebox throughthe firing opening in said backwall, an inclined conduit sectionextending rearwardly from said discharge conduit section, means on thelocomotive providing a pivotal support for the rearward end of saidinclined conduit section whereby said inclined conduit section may bemoved vertically about a transversely extending horizontal axis, theforward end of said inclined conduit section being supported by saiddischarge conduit section by a flexible joint providing for movementabout a transversely extending horizontal axis, and a third conduitsection extending rearwardly from said inclined conduit section andbeing universally connected therewith,V the center of articulation ofthe universal joint between said third conduit section and said inclinedconduit section lying approximately on the transversely extendinghorizontal axis of said pivotal support, said inclined conduit sectionbeing movable vertically about the transversely extending horizontalaxis of said pivotal support and about the center of articulation of theuniversal joint between the third conduit section and the inclinedconduit section to a position wherein said inclined conduit sectionopens axially into the cab rearward. of said discharge conduit section,and a screw in said inclined conduit section, said screw being removablefrom said inclined conduit section when the latter is moved in aposition to open axially into the cab rearward of said discharge conduitsection.

5. In a locomotive comprising a frame, a `:lirebox having a firingopening in the backwall thereof and a cab having a deck extendingrearward of said backwall, the combination comprising a dischargeconduit section secured to said backwall and being in communica-tionwith said rebox through the firing opening in said backwall, an inclinedconduit section extending rearwardly from said discharge conduitsection, means carried by the backwall providing a pivotal support forthe rearward end of said inclined conduit section whereby said inclinedconduit section may be moved vertically about a transversely extendinghorizontal axis, the forward end of said inclined conduit section beingsupported by said discharge conduit section by a flexible jointproviding for movement about a transversely yextending horizontal axis,and a third conduit section ex- .tending rearwardly from said inclinedconduit section and being universally connected therewith, the center ofarticulation of the universal joint between said third conduit sectionand said inclined conduit section lying approximately on thetransversely extending horizontal axis of said pivotal support, saidinclined conduit section being movable vertically about the transverselyextending horizon-tal axis of said pivotal support and about the centerof articulation of the universal joint between the third conduit sectionand the inclined conduit section to a position wherein said inclinedconduit sec-tion opens axially into the cab rearward of said dischargeconduit section, and a screw in said inclined conduit section, saidscrew being removable from said inclined conduit section when the latteris moved in a position to open axially into the cab rearward of saiddischarge conduit section.

6. In a locomotive comprising a frame, a firebox having a firing openingin the backwall thereof and a cab having a deck extending rearward ofsaid backwall, the combination comprising a discharge conduit sectionsecured to said backwall and being in communication with said ireboxthrough the firing opening in said backwall, an inclined conduit sectionextending rearwardly from said discharge conduit section, means carriedby the locomotive frame providing a pivotal support for the rearward endof said inclined conduit section whereby said inclined conduit sectionmay be moved vertically about a transversely extending horizontal axis,the forward end of said inclined conduit section being supported by saiddischarge conduit section by a exible joint providing for movement abouta transversely extending horizontal axis, and a third conduit sectionextending rearwardly from said inclined conduit section and beinguniversally connected therewith, the center of articulation of theuniversal joint between said third conduit section and said inclinedconduit section lying approximately on the transversely extendinghorizontal axis of said pivotal support, said inclined conduit sectionbeing movable vertically about the transversely extending horizontalaxis of said pivotal support and about the center of articulation of theuniversal joint between the third conduit section and the inclinedconduit section to a position wherein said inclined conduit sectionopens axially into the cab rearward of said discharge conduit section,and a screw in said inclined conduit section, said scr-ew beingremovable from said inclined conduit section when the latter is mo-vedin a position to open axially into the cab rearward of said dischargeconduit sectio-n.

'7. In a locomotive comprising a frame, a firebox having a firingopening in the backwall thereof and a cab having a deck extendingrearward of said backwall, the combination comprising a fuel e-levatingconveyor mounted on the locomotive and including a discharge conduitsection in communication with said rebox and a conduit section extendingrearwardly from said discharge conduit section, means on the locomotiveproviding a pivotal support for the rearward end of said conduitsection, and a conduit section flexibly connected to the rearward end ofsaid secondnamed conduit section, the forward end of said second-namedconduit section being flexibly supported by said discharge conduitsection, a screw in the second-named conduit section, and a screw inthethird-named conduit section, said screws being universally connected atthe flexible connection between the second and third-named conduitsections, said discharge conduit section having a removable portion overthe forward end of the second-named conduit section, said secondnamedconduit section having a removable portion over the forward end of thethird-named conduit section, the forward end of the thirdnamed conduitsection having a removable portion over the universal joint between saidscrews.

8. In a locomotive comprising a frame, a firebox structure mounted abovesaid frame and having a backwall provided with a ring opening therein, afuel elevating conveyor carried solely by said backwall comprising adischarge conduit section rigidly secured at its forward end to saidbackwall and communicating with said flrebox through said'firingopening, and an inclined conduit section extending vrearwardly of saiddischarge conduit section, means carried by said backwall for supportingthe second conduit section therefrom, and means forming a universalconnection between said discharge conduit section and the second conduitsection providing substantial relative angular movement between saiddischarge conduit and said inclined conduit.

CHARLES J. SURDY.

